90392163 has 4 divisors (see below), whose sum is σ = 120522888. Its totient is φ = 60261440.

The previous prime is 90392161. The next prime is 90392171. The reversal of 90392163 is 36129309.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36129309 = 3 ⋅12043103.

It is a cyclic number.

It is not a de Polignac number, because 90392163 - 2¹ = 90392161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90392161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15065358 + ... + 15065363.

It is an arithmetic number, because the mean of its divisors is an integer number (30130722).

Almost surely, 2^90392163 is an apocalyptic number.

90392163 is a deficient number, since it is larger than the sum of its proper divisors (30130725).

90392163 is a wasteful number, since it uses less digits than its factorization.

90392163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30130724.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 90392163 is about 9507.4793189362. The cubic root of 90392163 is about 448.7904356505.

The spelling of 90392163 in words is "ninety million, three hundred ninety-two thousand, one hundred sixty-three".